Bones moving incorrect things on mesh
Its because of wrong weight paint.

Solution: In pose mode select a bone and Shift select the model and switch from object mode to weight paint mode you will see the model with blue and red color. 

The red color represents the area which is under the effect of the bone in the Tool panel select subtract and paint on the parts you don't want the bone to move which are the (eye brows I guess) wallah and watch the tutorial by blender on weight paint basics on youtube ..